Resilient tire



', u APPLICATION FlLED JUNE 3191-9.4

E. 1. BENEDICT AND M. C. FROST. I

RESILIENT TIRE.

Patented July 13, 1.920.

UNITE-D STATES- .AEMORY J. BENEDICT AND MOLLIE c. rnosnforNEMPHIs. TENNESSEE.

REsILiENT TINE. g

Application filed .Tune 3. 1919. Serial No. 301,383.

To all whom t may concern: w

Be it known that we, EMORY J. BENEDIOT and MoLLrn C. Fnosr, citizens of the United States, and residing at Memphis, vin Y the county of Shelby and State of Tennessee, have invented certain new and useful Improvements in Resilient Tires, of which the following is a specification.

This invention relates to resilient tires designed to replace the ordinary type of pneumatic tires now commonly used on Inotor vehicle wheels and an object of the invention is to provide a resilient tire structure which is simple in constructions, durable, may be manufactured for a relatively small cost and one which will eliminatemany of the inconveniences contingent with the use'of ordinary pneumatic tires, such as blow outs, punctures, rim-cuts, or the like.

More specifically, the invention compre- Y hends the provision of a resilient tire structure comprising an outer Vcasing having a plurality of webs or ribs extending inwardly from the inner tread portion of the casing, and inwardly extending corrugations formed in the inner surface of the tire along the bead portions thereof, between which tapered ribs and corrugations the coils of a coil spring rests, vwhich springis, in connection withthe resilient casing provided for absorbing shocks incident to the travel of a wheel upon which the improved resilient tire is mounted.

ther objects of the invention will appear in the following detailed description, taken in connection with the accompanying drawing, forming a part of this specification, and in which drawing Figure l is a fragmentary side elevation of a tire having parts thereof broken away to expose portions of the casing and spring construction.

Fig. 2 is a transverse section through the tire, and Y Fig. 3 is a section on the line 3 3 taken in the direction indicated by the arrows.

Referring more particularly to the drawing, l indicates the casing of the resilient tire structure7 which casing may be made up in the same manner as ordinary tire shoes or casings are now constructed, being formed of laminated layers of fabric and rubber.

The casing l is providedwith the usual type of beads 2 by means of which it may be attached to an ordinary type of demountable beads rim structure commonly employed upon motor vehicle wheels. vThe casing l is provided with a plurality of ribs 3 formed integrally therewith which ribs' extend inwardly toward the central axis of the casing from the inner tread surface thereof as clearly shown in Figs. 1 and 2 of the drawings. The ribs 3 are spaced from each other and shaped to engage one upon each side of the coils of a spring 4 which is positioned withinv the casing l. The. -spring 4 is constructed of suitable'spring steel and is preferably endlesshaving Specification of Letters ,i I i. JJ 13, i

its ends welded or otherwise suit` ably connected to form a continuous length of resilientcoil spring about the entire cirvcumferenceof the tire. VThe inner surface of the shoe or casing lis providedwith yin'- .wardly extending corrugations'. which are formed upon the casing inwardly of the;`

2 thereof, forming between adjacent pairs of the corrugations pockets or seatsffor the innermost portions of the coils of the spring 4.

Upon compression of any portion of the l i casing l, of the resilient tire structure, the inwardly extending ribs 3 will brace` this said portion preventing it being ruptured or broken at the spaces between the coils ofV l the spring 4 and these ribs will also co-act with the coils of the spring in absorbing shocks incident to the travel of the tire,`the said coils adapted to be displaced circumferentially of the tire as well as laterally thereof for a'V limited distance.

The casing l may be spread, below or in-V wardly of the inner edges of the ribs 3, as

indicated in dotted lines in Fig. 2 of the* drawing, to permit the placing of the Spiral,

spring 4 therein, V0I" the removal vof the spring whenthe casing is worn to such an the spring to be-placed within a new casing.V

spirit of this invention,

Changesin details may bel made without w i s 100 'i extent as'to be' rendered useless, to permit and an endless Spiral Spring formed from a from the innery erface of alle 'tread portion of the easing te Substantially the center of cylindrical spring Wire Within said easing having its coils engaging between the adja- Cent ribs and Within the adjacent groovespf A 5 the casing.

2. A resilient tire comprising a' casing, a plurality of resilient ribs extending inwardly Y the easing and a spiral spring Within the 10 easing, having its 'convolutions engaging between the adjacent ribs.

-' l EMORY J. BENEDICT.

MOLLIE C. iRosfi.Y 

